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Recent content by cowslip

  1. cowslip

    Do I have to compile the VHDL sub-module in Modelsim?

    Anyone use ModelSim? Hi all, Modelsim *.dat format is not a standard format for loading data in memory.
  2. cowslip

    Do I have to compile the VHDL sub-module in Modelsim?

    Anyone use ModelSim? Hi everyone, I want to use Modelsim for simulating an example application in a processor and use the .dat file to load the application in memory. After at File ->Import I choose memory data, the dialog box asks for a *.mem file. Why can't I just use the .dat file I have...
  3. cowslip

    Boundary-scan/Slave serial configuration mode

    slave serial mode Hi everyone, I wonder what is the difference in result when using boundary-scan or slave serial configuration mode in programming a Xillinx FPGA. Does anyone knows what "daisy-chain configurations" mean in slave serial mode? I realize that in boundary-scan configuration...
  4. cowslip

    Suggest me Linux OS for embedded software engineer

    new to linux I've tried Mandrake and have experienced many different kind of problems while booting. Now I've decided to change but I'm really confused. Suse is said to be the easiest in usage, and debian too complicated. I've been using RedHat 8.2 in the past and there was no problem. Does...
  5. cowslip

    mod operation in VHDL

    mod in vhdl Thanks to all. Finally I used the standard algorithm for division, with subtractors, because i'd like to implement a xmod y, in one clock cycle. Vomit's solution seems good but unfortunately x input range is too excessive. I'm not sure i unsterstand the logic of the second...
  6. cowslip

    mod operation in VHDL

    vhdl mod Hi, what can I do if i want to have xmody in VHDL, where y is not a power of 2? Lets say it is y=48 for example. Then what hardware should I use? I just want to process the remainder. Thanks in advance!
  7. cowslip

    Cyclic Redundancy Check [CRC8]

    Hi, :D I'd be grateful if anyone could give me test and result vectors, for checking the operation of a CRC8 engine? I've found test cases for CRC32 but i couldn't find for CRC8!
  8. cowslip

    ATI RADEON X-Series on Mandrake 10.1

    Hi, I'm having a problem on installing ATI RADEON drivers for linux, in Mandrake 10.1. There is a message, in the command line "no Xserver found" and the installation can't be completed. In detail, my graphic's card is ATI RADEON X700. Also, it was not possible to upgrade linux kernel 2.4, or...
  9. cowslip

    what is the use of modelsim

    Hi, I use Modelsim to simulate my VHDL code. If red letters appear when you complile, it is probably that you 've done something wrong with your code. For example, may be you assign a signal of some type to a different type signal, or syntax error, or you use some operators, which demand to...
  10. cowslip

    Where to implement an AES encryption/decryption algorithm: in FPGA or in CPLD?

    Re: FPGA or CPLD? I 've worked with CPLD and my opinion is that there is serious restriction in the designs' size. A simple ALU and CPLD is full. :cry: I haven't work with FPGA, but i 'm trying to learn now. Could anyone list the basic steps for programming a spartan 3 Xilinx FPGA:?:
  11. cowslip

    What is the best VHDL book?

    navabi lecture notes on vhdl The best VHDL book for beginners is VHDL for designers by Stefan Sjoholm and Lennart Lindh. If you need something for advanced study try to find "HDL Chip Design" by Douglas Smith.
  12. cowslip

    Operational Amplifier as comparator

    Re: Operational Amplifier You can visit: h*****users.ece.gatech.edu/rincon-mora/publicat/journals/unpub/lv_amp.pdf, finding a pdf for low voltage techniquesand considerations on integrarted operational amplifiers. by PE Allen and DR Holdberg. You can also search google for what PE Allen and DR...
  13. cowslip

    Communication between processor and co-processors

    Re: Co-processors Thanks BRM, :roll: I understand this now. A co-processor seems to communicate faster with the processor, through CPI or AMBA.
  14. cowslip

    Communication between processor and co-processors

    Co-processors Hi, if somebody has experience in processors & co-processors, i 'd like to know what is preferable to do for the communication between them? Is it a better solution to use a communication controller like 10/100 ethernet Mac or PCI of the processor :?:
  15. cowslip

    How to use negative bias voltage to Microwind ?

    Microwind problems :wink: Goodevening everybody! Iam very curious to find out if if there is any possibiltiy to use negative bias voltage to Microwind. If anyone Knows how to do this please help me!

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